Piping structure and piping replacement methods

Abstract

To provide a piping structure that can improve the workability of replacing risers. [Solution] A piping structure 10 includes a first joint (first manifold joint 110) located on an upper floor, a second joint (second manifold joint 120) located on a lower floor, and a riser pipe 130 connecting the first joint and the second joint, wherein a socket 102 is formed at the lower end of the first joint, and a receiving opening 131 into which the socket 102 of the first joint can be inserted is formed at the upper end of the riser pipe 130, and the structure further comprises a joint member 140 provided on the riser pipe 130 that slides along the longitudinal direction of the riser pipe 130 to connect and disconnect the first joint and the second joint via the riser pipe 130.

Description

Technical Field

[0001] The present invention relates to the technology of piping structures and piping renewal methods.

Background Art

[0002] Conventionally, a technology of a piping structure including a riser pipe that is provided in an apartment building or the like and guides drainage from upper floors to lower floors is known. For example, it is as described in Patent Document 1.

[0003] Patent Document 1 discloses a piping structure that connects a first joint and a second joint located below the first joint. Specifically, in the technology described in Patent Document 1, a first riser pipe extending downward from the first joint, a second riser pipe extending upward from the second joint, and a renewal joint that connects the first riser pipe and the second riser pipe are provided.

[0004] In the piping structure described in Patent Document 1, when renewing an old riser pipe with a new riser pipe, first, the renewal joint is slid upward to disengage the renewal joint from the second riser pipe. Next, the first riser pipe and the second riser pipe are removed from between the first joint and the second joint. At this time, since the first riser pipe is flange-connected to the first joint, it is necessary to remove bolts or the like fastened to the flange portion. After that, a new first riser pipe and a new second riser pipe are attached between the first joint and the second joint. Also, the first riser pipe and the second riser pipe are connected by a new renewal joint.

[0005] Thus, in the technology described in Patent Document 1, piping renewal can be performed without cutting the riser pipe. However, in a piping structure as described in Patent Document 1, since the riser pipe and the joint are flange-connected, when renewing the piping, it is necessary to remove bolts or the like that fix the riser pipe and the joint, and it is necessary to remove the riser pipe horizontally while keeping it upright, etc., and there is room for improvement in terms of the laboriousness of the work.

Prior Art Documents

Patent Documents

[0006] [Patent Document 1] Patent No. 7412198 [Overview of the project] [Problems that the invention aims to solve]

[0007] One aspect of this disclosure has been made in view of the above circumstances, and the problem it seeks to solve is to provide a piping structure and a method for replacing piping that can improve the workability of replacing risers. [Means for solving the problem]

[0008] The problem that one aspect of this disclosure aims to solve is as described above, and the means for solving this problem will now be explained.

[0009] A piping structure according to one aspect of the present disclosure includes a first joint located on an upper floor, a second joint located on a lower floor, and a riser connecting the first joint and the second joint, wherein the lower end of the first joint has a socket, and the upper end of the riser has a socket into which the socket of the first joint can be inserted, and further comprises a joint member provided on the riser that slides along the longitudinal direction of the riser to connect and disconnect the first joint and the second joint via the riser, wherein the riser is formed by dividing it into a first riser connected to the first joint and a second riser connected to the second joint, the joint member is capable of connecting the first riser and the second riser, and the joint member is capable of connecting the first riser and the second riser when a gap is provided between the first riser and the second riser.

[0010] In another embodiment of the present disclosure, a piping structure includes a first joint located on an upper floor, a second joint located on a lower floor, and a riser connecting the first joint and the second joint, wherein the lower end of the first joint has a socket, and the upper end of the riser has a socket into which the socket of the first joint can be inserted, and further comprises a joint member provided on the riser that slides along the longitudinal direction of the riser to connect and disconnect the first joint and the second joint via the riser, wherein the riser is formed by dividing it into three or more sections, and a plurality of joint members are provided so that the divided risers can be connected to each other, and the joint member can connect two adjacent risers when there is a gap between the two adjacent risers.

[0011] In one embodiment of this disclosure, the invention further comprises a support member for supporting the joint member.

[0012] In another embodiment of the present disclosure, the support member is a band-shaped member provided below the joint member in the riser pipe and detachably attached to the outer circumference of the riser pipe.

[0013] Furthermore, a method for replacing piping according to one aspect of the present disclosure is a method for replacing piping in a piping structure, comprising the steps of: sliding the joint member upward or downward to release the connection between two adjacent risers; removing the riser connected to the first joint; removing the riser connected to the second joint; and installing a new riser and a joint member between the first joint and the second joint. [Effects of the Invention]

[0014] According to one aspect of this disclosure, the workability of updating vertical pipes can be improved. [Brief explanation of the drawing]

[0015] [Figure 1] A schematic diagram showing an apartment building with a piping system. [Figure 2]Front view showing the piping structure provided between the upper and lower floors. [Figure 3] Front view showing the collective joint. [Figure 4] (a) Front cross-sectional view showing the riser pipe. (b) Front cross-sectional view showing the joint member. [Figure 5] Front view showing the state of renewal of the riser pipe according to the first embodiment. [Figure 6] Front view showing the piping structure according to the second embodiment. [Figure 7] Front partial cross-sectional view showing the joint member according to the second embodiment. [Figure 8] Front view showing the state of renewal of the riser pipe according to the second embodiment. [Figure 9] Front view showing the piping structure according to the third embodiment.

Mode for Carrying Out the Invention

[0016] Hereinafter, with reference to FIG. 1, an outline of the apartment house 1 to which the piping structure 10 according to the first embodiment of the present invention is applied will be described.

[0017] The apartment house 1 is one in which a plurality of houses 2 are provided in a single building (such as a condominium or an apartment). In the present embodiment, an example is shown in which the houses 2 are provided on each floor of the building partitioned vertically by the floor slab 3. Each house 2 is provided with equipment that generates wastewater. In the present embodiment, an example is shown in which each house 2 is provided with a sink 4, a washing machine 5, and a toilet 6. The wastewater generated by the sink 4 or the like is drained to the sewer pipe by the piping structure 10.

[0018] Next, with reference to FIGS. 1 to 4, the piping structure 10 according to the present embodiment will be described.

[0019] The piping structure 10 is for draining the wastewater generated in each house 2 of the apartment house 1 to the sewer pipe. The piping structure 10 mainly includes a collective joint 100 (the first collective joint 110 and the second collective joint 120), a riser pipe 130, a joint member 140, a band member 150, a hanger 160, a ventilation pipe 170, a leg joint 180, a horizontal pipe 190, etc.

[0020] The collective joint 100 shown in FIGS. 1 to 3 is a joint that collects the wastewater generated on the installed floor and the wastewater from the upper floor and guides them downward. The collective joint 100 is formed of, for example, a resin material. As shown in FIG. 2, the collective joint 100 is provided on both the upper and lower sides (each of the upper floor and the lower floor) with the riser pipe 130 interposed therebetween. In the present embodiment, among the vertically continuous floors, the upper side floor is referred to as the upper floor and the lower side floor is referred to as the lower floor, respectively. In the present embodiment, in order to distinguish the collective joints 100 provided above and below the riser pipe 130, the collective joint 100 (the collective joint 100 on the upper floor side) connected to the upper end side of the riser pipe 130 is referred to as the first collective joint 110. Also, the collective joint 100 (the collective joint 100 on the lower floor side) connected to the lower end side of the riser pipe 130 is referred to as the second collective joint 120. Since the configurations of the first collective joint 110 and the second collective joint 120 are the same, the configuration will be mainly described below by focusing on the first collective joint 110.

[0021] The first collective joint 110 shown in FIGS. 2 and 3 mainly includes a receiving port 101, an insertion port 102, a branch port 103, etc.

[0022] The receiving port 101 is a portion formed at the upper end of the first collective joint 110. The receiving port 1 is formed to open upward. The receiving port 101 is formed in a shape into which the lower end portion (insertion port 142) of the joint member 140 described later can be inserted. Specifically, the receiving port 1 is formed to have an inner diameter slightly larger than the outer diameter of the insertion port 142 of the joint member 140. Although not shown, a flexible member (such as a rubber ring) for improving the sealing property with the joint member 140 described later can be provided inside the receiving port 101.

[0023] The socket 102 is a portion formed at the lower end of the first manifold joint 110. The socket 102 is formed to open downwards. The socket 102 is shaped to be insertable into the upper end (receiving opening 131) of the riser pipe 130, which will be described later. Specifically, the socket 102 is formed to have an outer diameter slightly smaller than the inner diameter of the receiving opening 131 of the riser pipe 130.

[0024] The branch opening 103 is a portion formed on the side surface of the first manifold joint 110. The branch opening 103 is formed to open laterally. In this embodiment, it is assumed that one branch opening 103 is formed on the first manifold joint 110, but for example, multiple (two or more) branch openings 103 may be formed.

[0025] The receiving port 101, the insertion port 102, and the branch port 103 are connected inside the first manifold joint 110. As a result, wastewater flowing into the first manifold joint 110 from the receiving port 101 and the branch port 103 is discharged downward from the insertion port 102 by its own weight.

[0026] Similar to the first manifold 110, the second manifold 120 also has a receiving port 101, a spigot port 102, and a branch port 103 (see Figure 2).

[0027] As shown in Figure 2, the manifold joint 100 is positioned to penetrate the floor slab 3 of each floor vertically. The branch outlet 103 of the manifold joint 100 is positioned on the upper side of the floor slab 3. The sink 4, washing machine 5, toilet 6, etc. (see also Figure 1) on the floor where the manifold joint 100 is installed are connected to the branch outlet 103, and the wastewater from the sink 4, etc. is guided to the manifold joint 100.

[0028] The riser pipe 130 shown in Figures 1, 2, and 4(a) is a pipe that guides wastewater from the upper floor to the lower floor. The riser pipe 130 is formed from, for example, a resin material. The riser pipe 130 is formed in a cylindrical shape with its axial direction oriented vertically. The riser pipe 130 mainly comprises a receiving port 131, a spigot 132, and a flexible member 133, etc.

[0029] The socket 131 is a portion formed at the upper end of the riser pipe 130. The socket 131 is formed to open upward. The socket 131 is shaped to allow the lower end (insertion opening 102) of the manifold joint 100 to be inserted. Specifically, the socket 131 is formed to have an inner diameter slightly larger than the outer diameter of the insertion opening 102 of the manifold joint 100.

[0030] The insertion opening 132 is a portion formed at the lower end of the riser pipe 130. The insertion opening 132 is formed to open downwards. The insertion opening 132 is formed in a shape that allows it to be inserted into the upper end (receiving opening 141) of the joint member 140, which will be described later. Specifically, the insertion opening 132 is formed to have an outer diameter slightly smaller than the inner diameter of the receiving opening 141 of the joint member 140. In this embodiment, the riser pipe 130 is formed to have a constant outer diameter from the lower end (insertion opening 132) to near the upper end, but for example, only the lower end (insertion opening 132) may be made to have a reduced diameter (or increased diameter) according to the inner diameter of the joint member 140.

[0031] The flexible member 133 is provided inside the upper end (receiving opening 131) of the riser pipe 130 and is a flexible member. The flexible member 133 is formed in an annular (ring-shaped) form along the inner circumferential surface of the receiving opening 131. The flexible member 133 is made of a flexible material such as rubber. As shown in Figure 4(a), the flexible member 133 is fixed to the inner circumferential surface of the receiving opening 131. Note that the flexible member 133 may be prepared as a separate member from the riser pipe 130.

[0032] As shown in Figure 2, the insertion port 102 of the first manifold joint 110 on the upper floor side is inserted into the upper end (receiving port 131) of the riser pipe 130. This connects the first manifold joint 110 and the riser pipe 130 so that they are in communication. At this time, a flexible member 133 (see Figure 4(a)) is placed between the insertion port 102 of the first manifold joint 110 and the receiving port 131 of the riser pipe 130, thereby improving the sealing performance between the first manifold joint 110 and the riser pipe 130.

[0033] Furthermore, by arranging the flexible member 133 between the insertion port 102 of the first manifold joint 110 and the receiving port 131 of the riser pipe 130, relative movement (swinging) of the riser pipe 130 with respect to the first manifold joint 110 can be permitted. Specifically, as shown in Figure 5(b), the lower part of the riser pipe 130 can be easily swung around its upper end (the connection point with the first manifold joint 110).

[0034] The joint member 140 shown in Figures 2 and 4(b) is capable of connecting and disconnecting the first manifold joint 110 on the upper floor and the second manifold joint 120 on the lower floor. The joint member 140 is formed from, for example, a resin material. The joint member 140 is formed in a cylindrical shape with its axial direction oriented vertically. The joint member 140 mainly comprises a receiving opening 141, a insertion opening 142, and a flexible member 143, etc.

[0035] The socket 141 is a portion formed at the upper end of the joint member 140. The socket 141 is formed to open upward. The socket 141 is shaped to allow the lower end (insertion opening 132) of the riser pipe 130 to be inserted. Specifically, the socket 141 is formed to have an inner diameter slightly larger than the outer diameter of the insertion opening 132 of the riser pipe 130.

[0036] The insertion opening 142 is a portion formed at the lower end of the joint member 140. The insertion opening 142 is formed to open downwards. The insertion opening 142 is formed in a shape that allows it to be inserted into the upper end (receiving opening 101) of the manifold joint 100. Specifically, the insertion opening 142 is formed to have an outer diameter slightly smaller than the inner diameter of the receiving opening 101 of the manifold joint 100. In this embodiment, the outer and inner diameters of the lower end (insertion opening 142) of the joint member 140 are formed to be smaller than the outer and inner diameters of the other parts, but the outer diameter of the lower end (insertion opening 142) may be formed to be the same as the outer diameter of the other parts, for example, as long as it can be inserted into the receiving opening 101 of the manifold joint 100.

[0037] The flexible member 143 is provided inside the upper end (receiving opening 141) of the joint member 140 and is a flexible member. The flexible member 143 is formed in an annular (ring-shaped) form along the inner circumferential surface of the receiving opening 141. The flexible member 143 is made of a flexible material such as rubber. As shown in Figure 4(b), the flexible member 143 is fixed to the inner circumferential surface of the receiving opening 141. Note that the flexible member 143 may be prepared as a separate member from the joint member 140.

[0038] As shown in Figure 2, the insertion port 132 of the riser pipe 130 is inserted into the upper end (receiving port 141) of the joint member 140. With the riser pipe 130 inserted, the joint member 140 can slide up and down along the longitudinal direction (vertical direction) of the riser pipe 130. Also, when the joint member 140 is slid downward, the lower end (inserting port 142) of the joint member 140 is inserted into the receiving port 101 of the second manifold joint 120 on the lower floor side. In this way, the riser pipe 130 and the second manifold joint 120 are connected so that they communicate with each other via the joint member 140. That is, in this state, the first manifold joint 110 on the upper floor side and the second manifold joint 120 on the lower floor side are connected so that they communicate with each other via the riser pipe 130 and the joint member 140. In this case, a flexible member 143 (see Figure 4(b)) is placed between the insertion opening 132 of the riser pipe 130 and the receiving opening 141 of the joint member 140, thereby improving the sealing performance between the riser pipe 130 and the joint member 140.

[0039] The band member 150 shown in Figure 2 is for preventing the riser pipe 130 from descending. The band member 150 is a strip-shaped member that can be attached to and removed from the outer circumference of the riser pipe 130. The band member 150 can be attached to the riser pipe 130 just above the joint member 140. As a result, when the riser pipe 130 attempts to descend relative to the joint member 140, the band member 150 will come into contact with the joint member 140, thereby preventing the riser pipe 130 from descending.

[0040] The suspension device 160 shown in Figure 2 is for preventing the riser pipe 130 from descending. The suspension device 160 can be fixed to the floor slab 3 on the upper floor near the upper end of the riser pipe 130. The suspension device 160 is configured to be detachable from the riser pipe 130. The specific configuration of the suspension device 160 is not particularly limited, but it can be made up of, for example, a chain suspended from the floor slab 3, a belt attached to the riser pipe 130, etc.

[0041] The ventilation pipe 170 shown in Figure 1 is a pipe for introducing outside air into the riser pipe 130. The ventilation pipe 170 is positioned to connect the manifold joint 100 on the top floor to the outside of the apartment building 1.

[0042] The leg joint 180 is a joint for connecting the riser pipe 130 and the horizontal pipe 190, which will be described later. The leg joint 180 is connected to the lower end of the riser pipe 130 on the lowest floor. Thus, in this embodiment, the leg joint 180 is connected to the lower end of the riser pipe 130 on the lowest floor, rather than the manifold joint 100.

[0043] The horizontal pipe 190 is a pipe that guides wastewater from each house 2 to the sewage manhole S. The horizontal pipe 190 is laid horizontally under the floor of the lowest floor of the apartment building 1. The end of the horizontal pipe 190 is connected to the sewage manhole S. The wastewater guided to the sewage manhole S is then guided to the sewer pipe via the sewage manhole S.

[0044] Next, we will explain how to replace (new) the riser pipe 130 in the piping structure 10 configured as described above.

[0045] When replacing the vertical pipe 130, first remove the band member 150 and the suspension device 160 (see Figure 2) attached to the vertical pipe 130.

[0046] Next, as shown in Figure 5(a), the joint member 140 is slid upward along the riser pipe 130. This causes the insertion port 142 of the joint member 140 to be withdrawn from the receiving port 101 of the second manifold joint 120, and the connection between the first manifold joint 110 and the second manifold joint 120 via the riser pipe 130 is released.

[0047] Next, as shown in Figure 5(b), the lower end of the riser pipe 130 (joint member 140) is shifted away from directly above the second manifold joint 120 (the axis of the second manifold joint 120). Specifically, the lower end of the riser pipe 130 is swung horizontally around the upper end of the riser pipe 130. As described above, a flexible member 133 is provided at the receiving end 131 of the riser pipe 130 (see Figure 4(a)), so the swinging of the riser pipe 130 relative to the first manifold joint 110 is permitted, and the riser pipe 130 can be easily swung. By swinging the riser pipe 130, the position of the lower end of the riser pipe 130 and the second manifold joint 120 can be shifted, and space can be secured below the riser pipe 130.

[0048] Next, as shown in Figure 5(c), the receiving end 131 of the riser pipe 130 is pulled out from the insertion end 102 of the first manifold joint 110. This allows the riser pipe 130 and the joint member 140 to be removed from between the first manifold joint 110 and the second manifold joint 120.

[0049] Next, the newly prepared riser pipe 130 and joint member 140 are installed between the first manifold joint 110 and the second manifold joint 120. The new riser pipe 130 and joint member 140 can be installed between the first manifold joint 110 and the second manifold joint 120 by a procedure that is roughly the reverse of the method used to remove the riser pipe 130, etc.

[0050] Specifically, the insertion opening 102 of the first manifold joint 110 is inserted into the receiving opening 131 of the riser pipe 130, which has a joint member 140 at its lower end (see Figure 5(c)), the lower end of the riser pipe 130 (joint member 140) and the center of the second manifold joint 120 are aligned (see Figure 5(b)), and the joint member 140 is slid downward to connect with the second manifold joint 120 (see Figure 5(a)). After that, the band member 150 and the hanger 160 are attached to the riser pipe 130 (see Figure 2). In this way, the riser pipe 130 can be replaced.

[0051] In the piping structure 10 according to this embodiment, the first manifold joint 110 and the riser pipe 130 are connected by the insertion port 102 and the receiving port 131, so the riser pipe 130 can be easily attached to and detached from the first manifold joint 110 while tilting the riser pipe 130. In particular, in this embodiment, the flexible member 133 provided on the riser pipe 130 allows movement (oscillation) of the riser pipe 130 relative to the first manifold joint 110 while improving the sealing performance between the first manifold joint 110 and the riser pipe 130.

[0052] As described above, the piping structure 10 according to the first embodiment is The first joint (first manifold joint 110) is located on the upper floor, The second joint (second manifold joint 120) located on the lower floor, A riser pipe 130 connecting the first fitting and the second fitting, A piping structure 10 including, An insertion opening 102 is formed at the lower end of the first joint. A receiving opening 131 is formed at the upper end of the riser pipe 130 into which the insertion opening 102 of the first joint can be inserted. The device further comprises a joint member 140 provided on the riser pipe 130, which slides along the longitudinal direction of the riser pipe 130, thereby enabling connection and disconnection of the first joint and the second joint via the riser pipe 130. This configuration improves the workability of replacing the riser pipe 130. Specifically, the riser pipe 130 can be easily attached and detached using the joint member 140, which can be connected and disconnected by sliding, and the riser pipe 130, which is connected to the first manifold joint 110 by the receiving end 131.

[0053] Furthermore, the joint member 140 is It is provided at the lower end of the riser pipe 130 and is connectable to the second joint. With this configuration, the vertical pipe 130 can be easily attached to and detached from the second manifold joint 120 by sliding the joint member 140 up and down.

[0054] Furthermore, a receiving opening 101 is formed at the upper end of the second joint. The lower end of the joint member 140 has an insertion opening 142 that can be inserted into the receiving opening 101 of the second joint. With this configuration, the joint member 140 can be easily attached to and detached from the second manifold joint 120 by inserting and removing the joint member 140 from the second manifold joint 120.

[0055] Furthermore, the piping structure 10 is The device further comprises a flexible member 133 provided between the first joint and the upper end of the riser pipe 130. This configuration makes it easier to swing the riser pipe 130 relative to the first manifold joint 110, and allows for easy attachment and detachment of the riser pipe 130.

[0056] Furthermore, the first joint, the second joint, the riser pipe 130, and the joint member 140 are made of resin. This configuration effectively prevents corrosion compared to metal (iron, etc.) materials. Furthermore, it allows for weight reduction of each component, improving work efficiency.

[0057] Furthermore, the piping structure 10 is The system further includes a suspension device 160 to prevent the riser pipe 130 from descending. This configuration prevents the riser pipe 130 from unintentionally descending and disconnecting the first manifold joint 110 and the second manifold joint 120.

[0058] Furthermore, the method for replacing piping according to the first embodiment is: A method for replacing piping in the above-mentioned piping structure 10, The process involves sliding the joint member 140 upward to release the connection with the second joint (see Figure 5(a)), The process involves removing the riser pipe 130 from the first joint (see Figure 5(c)), The process involves installing a new riser pipe 130 and a joint member 140 between the first joint and the second joint, It includes. By configuring it in this way, the work efficiency for replacing the vertical pipe 130 can be improved.

[0059] In the following section, the piping structure 20 according to the second embodiment will be described using Figures 6 to 8.

[0060] The main differences between the piping structure 20 according to the second embodiment shown in Figure 6 and the piping structure 10 according to the first embodiment (see Figure 2, etc.) are that it comprises two divided risers 230 (a first riser 231 and a second riser 232), and a joint member 240 connecting the first riser 231 and the second riser 232. In the following, the configuration will be described focusing on the above differences, and components similar to those in the first embodiment will be denoted by the same reference numerals as in the first embodiment and will not be described further.

[0061] As shown in Figure 6, the riser pipe 230 is formed by dividing it into two parts, upper and lower. Specifically, the riser pipe 230 includes a first riser pipe 231 and a second riser pipe 232, which are divided into upper and lower parts.

[0062] The first riser pipe 231 is the portion connected to the first manifold joint 110. The first riser pipe 231 is formed in a cylindrical shape with its axial direction oriented vertically. The first riser pipe 231 mainly comprises a receiving opening 231a, a spigot opening 231b, and a flexible member (not shown), etc.

[0063] The receiving opening 231a is formed in the same way as the receiving opening 131 of the riser pipe 130 in the first embodiment. This allows the insertion opening 102 of the first manifold joint 110 to be inserted into the receiving opening 231a of the first riser pipe 231. In addition, the receiving opening 231a is provided with a flexible member (not shown), similar to the flexible member 133 (see Figure 4(a)) in the first embodiment.

[0064] The Socket 231b is a portion formed at the lower end of the first riser pipe 231. The Socket 231b is formed to open downwards. The Socket 231b is shaped to be insertable into the upper end (upper receiving opening 241) of the joint member 240, which will be described later. Specifically, the Socket 231b is formed to have an outer diameter slightly smaller than the inner diameter of the upper receiving opening 241 of the joint member 240.

[0065] The second riser pipe 232 is located below the first riser pipe 231 and is connected to the second manifold joint 120. The second riser pipe 232 is formed in a cylindrical shape with its axial direction oriented vertically. The second riser pipe 232 mainly comprises an upper insertion opening 232a and a lower insertion opening 232b, etc.

[0066] The upper insertion opening 232a is a portion formed at the upper end of the second vertical pipe 232. The upper insertion opening 232a is formed to open upward. The upper insertion opening 232a is formed in a shape that allows it to be inserted into the lower end (lower receiving opening 242) of the joint member 240, which will be described later. Specifically, the upper insertion opening 232a is formed to have an outer diameter that is slightly smaller than the inner diameter of the lower receiving opening 242 of the joint member 240.

[0067] The lower socket 232b is a portion formed at the lower end of the second riser pipe 232. The lower socket 232b is formed to open downwards. The lower socket 232b is shaped to be insertable into the upper end (receiving opening 101) of the second manifold joint 120. Specifically, the lower socket 232b is formed to have an outer diameter slightly smaller than the inner diameter of the receiving opening 101 of the second manifold joint 120.

[0068] The joint member 240 shown in Figures 6 and 7 is capable of connecting and disconnecting the first manifold joint 110 on the upper floor and the second manifold joint 120 on the lower floor. The joint member 240 is formed from, for example, a resin material. The joint member 240 is formed in a cylindrical shape with its axial direction oriented vertically. The joint member 240 mainly comprises an upper receiving opening 241, a lower receiving opening 242, an upper flexible member 243, and a lower flexible member 244.

[0069] The upper receiving opening 241 is a portion formed at the upper end of the joint member 240. The upper receiving opening 241 is formed to open upward. The upper receiving opening 241 is shaped to allow the lower end (insertion opening 231b) of the first riser pipe 231 to be inserted. Specifically, the upper receiving opening 241 is formed to have an inner diameter slightly larger than the outer diameter of the insertion opening 231b of the first riser pipe 231.

[0070] The lower socket 242 is a portion formed at the lower end of the joint member 240. The lower socket 242 is formed to open downwards. The lower socket 242 is shaped to allow insertion of the upper end (insertion opening 232a) of the second riser pipe 232. Specifically, the lower socket 242 is formed to have an inner diameter slightly larger than the outer diameter of the insertion opening 232a of the second riser pipe 232.

[0071] The upper flexible member 243 is provided inside the upper end (upper receiving opening 241) of the joint member 240 and is a flexible member. The upper flexible member 243 is formed in an annular (ring-shaped) form along the inner circumferential surface of the upper receiving opening 241. The upper flexible member 243 is made of a flexible material such as rubber. The upper flexible member 243 is fixed to the inner circumferential surface of the upper receiving opening 241. Note that the upper flexible member 243 may be prepared as a separate member from the joint member 240.

[0072] The lower flexible member 244 is provided inside the lower end (lower receiving opening 242) of the joint member 240 and is a flexible member. The lower flexible member 244 is formed in an annular (ring-shaped) form along the inner circumferential surface of the lower receiving opening 242. The lower flexible member 244 is made of a flexible material such as rubber. The lower flexible member 244 is fixed to the inner circumferential surface of the lower receiving opening 242. Note that the lower flexible member 244 may be prepared as a separate member from the joint member 240.

[0073] In the piping structure 20 configured as described above, as shown in Figure 6, the socket 102 of the first manifold fitting 110 is inserted into the socket 231a of the first riser pipe 231. This connects the first riser pipe 231 to the first manifold fitting 110. The first riser pipe 231 is positioned to extend downward from the first manifold fitting 110.

[0074] Furthermore, the lower insertion port 232b of the second riser pipe 232 is inserted into the receiving port 101 of the second manifold joint 120. This connects the second riser pipe 232 to the second manifold joint 120. The second riser pipe 232 is positioned to extend upward from the second manifold joint 120.

[0075] Furthermore, the insertion opening 231b of the first riser pipe 231 and the upper insertion opening 232a of the second riser pipe 232 are inserted into the upper receiving opening 241 and lower receiving opening 242 of the joint member 240, respectively. In this way, the first riser pipe 231 and the second riser pipe 232 are connected by the joint member 240. Note that a band member 150 similar to that in the first embodiment may be provided immediately below the joint member 240 in the second riser pipe 232. This prevents the joint member 240 from descending.

[0076] Next, we will explain how to replace (new) the riser pipe 230 in the piping structure 20 configured as described above.

[0077] When replacing the riser pipe 230, first remove the suspension device 160 (see Figure 6) installed on the riser pipe 230 (first riser pipe 231).

[0078] Next, as shown in Figure 8(a), the joint member 240 is slid upward along the first riser pipe 231. This causes the lower receiving end 242 of the joint member 240 to be withdrawn from the insertion end 232a of the second riser pipe 232, and the connection between the first manifold joint 110 and the second manifold joint 120 via the riser pipe 230 is released.

[0079] Next, as shown in Figure 8(b), the lower end of the first riser pipe 231 (joint member 240) is offset from directly above the second riser pipe 232 (the axis of the second riser pipe 232). Specifically, the lower end of the first riser pipe 231 is swung horizontally around the upper end of the first riser pipe 231. As described above, a flexible member is provided at the receiving end 231a of the first riser pipe 231, so the swinging of the first riser pipe 231 relative to the first manifold joint 110 is permitted, and the first riser pipe 231 can be easily swung. By swinging the first riser pipe 231, the positions of the lower end of the first riser pipe 231 and the upper end of the second riser pipe 232 are offset, and space can be secured below the first riser pipe 231.

[0080] Next, as shown in Figure 8(c), the receiving end 231a of the first riser pipe 231 is pulled out from the insertion end 102 of the first manifold joint 110. Also, the lower insertion end 232b of the second riser pipe 232 is pulled out from the receiving end 101 of the second manifold joint 120. This allows the riser pipes 230 (the first riser pipe 231 and the second riser pipe 232) and the joint members 240 to be removed from between the first manifold joint 110 and the second manifold joint 120.

[0081] Next, the newly prepared risers 230 (the first riser 231 and the second riser 232) and the joint members 240 are installed between the first manifold 110 and the second manifold 120. The new risers 230 and joint members 240 can be installed between the first manifold 110 and the second manifold 120 by a procedure that is roughly the reverse of the method used to remove the risers 230, etc.

[0082] Specifically, the insertion port 102 of the first manifold joint 110 is inserted into the receiving port 231a of the first riser pipe 231, which has a joint member 240 at its lower end (see Figure 8(c)), the lower insertion port 232b of the second riser pipe 232 is inserted into the receiving port 101 of the second manifold joint 120 (see Figure 8(c)), the lower end of the first riser pipe 231 (joint member 240) and the center of the second riser pipe 232 are aligned (see Figure 8(b)), and the joint member 240 is slid downward to connect with the second riser pipe 232 (see Figure 8(a)). After that, the hanger 160 is attached to the first riser pipe 231 (see Figure 6). In this way, the riser pipe 230 can be replaced.

[0083] According to the piping structure 20 of this embodiment, the first manifold joint 110 and the first riser pipe 231 are connected by the insertion port 102 and the receiving port 231a, so the first riser pipe 231 can be easily attached to and detached from the first manifold joint 110 while tilting the first riser pipe 231.

[0084] As described above, in the piping structure 20 according to the second embodiment, The aforementioned riser pipe 230 is It is formed by dividing it into a first riser pipe 231 connected to the first joint (first manifold joint 110) and a second riser pipe 232 connected to the second joint (second manifold joint 120), The aforementioned joint member 240 is The first riser pipe 231 and the second riser pipe 232 are connectable. By configuring it in this way, the riser pipe 230 can be divided, making each riser pipe smaller and improving work efficiency.

[0085] Furthermore, a receiving opening 101 is formed at the upper end of the second joint. The lower end of the second riser pipe 232 has a socket (lower socket 232b) that can be inserted into the socket 101 of the second joint. With this configuration, the second riser pipe 232 can be connected to the second manifold joint 120 via the receiving port 101, and the riser pipe 230 can be easily attached and detached.

[0086] Furthermore, the method for replacing piping according to the second embodiment is: A method for replacing piping in the above-mentioned piping structure 20, The process involves sliding the joint member 240 upward or downward to release the connection between the first riser pipe 231 and the second riser pipe 232, The process of removing the first riser pipe 231 from the first joint, The process of removing the second riser pipe 232 from the second joint, The process of installing a new first riser pipe 231, a second riser pipe 232, and a joint member 240 between the first joint and the second joint, It includes. By configuring it in this way, the work efficiency for replacing the vertical pipe 230 can be improved.

[0087] In the following section, the piping structure 20 according to the third embodiment will be described with reference to Figure 9.

[0088] The main differences between the piping structure 30 according to the third embodiment shown in Figure 9 and the piping structure 20 according to the second embodiment (see Figure 6, etc.) are that it comprises three divided risers 330 (a first riser 331, a second riser 332, and a third riser 333), and two joint members 340 that connect the three risers 330.

[0089] Thus, the riser pipe 330 can be divided into any number of sections. The joint member 340 is slidably mounted on the riser pipe 330. By sliding the joint member 340, the riser pipes 330 can be connected to each other or disconnected. Note that the configuration of the joint member 340 is the same as that of the joint member 240 in the second embodiment, so a detailed explanation is omitted.

[0090] As described above, in the piping structure 30 according to the third embodiment, The aforementioned riser pipe 330 is It is formed by dividing it into three or more parts. The aforementioned joint member 340 is Multiple sections of the divided vertical pipe 330 are provided so that they can be connected to one another. By configuring it in this way, the riser pipe 330 can be divided, making each riser pipe smaller and improving work efficiency.

[0091] The first manifold joint 110 and the second manifold joint 120 in this embodiment are one form of the first joint and the second joint according to the present invention.

[0092] Although embodiments of the present invention have been described above, the present invention is not limited to the above configuration, and various modifications are possible within the scope of the invention as described in the claims.

[0093] For example, in the above embodiment, a riser connecting a manifold joint 100 (first manifold joint 110 and second manifold joint 120) provided on the upper and lower floors was described as an example of one embodiment of the present invention, but the type of joint to which the riser is connected is not limited to this. For example, as shown in Figure 1, the present invention is also applicable to a configuration in which a riser is connected to a leg joint 180 provided on the lowest floor.

[0094] Furthermore, although the above embodiment shows an example in which the riser pipe 130 etc. are formed from a resin material, the present invention is not limited thereto, and the material of the riser pipe 130 etc. can be arbitrarily changed to, for example, a metal material.

[0095] Furthermore, in the second embodiment described above (see Figure 8), an example was shown in which the joint member 240 is slid upward to release the connection between the first manifold joint 110 and the second manifold joint 120. However, the sliding direction of the joint member 240 is not particularly limited. For example, it is also possible to release the connection between the first manifold joint 110 and the second manifold joint 120 by sliding the joint member 240 downward. [Explanation of Symbols]

[0096] 10 Piping structure 100 Manifold Connector 101 Receptacle 102 Socket 110 First manifold joint 120 Second manifold joint 130 Standpipe 131 Receptacle 132 sockets 133 Flexible member 140 Joint Members 141 Receptacle 142 Socket 160 Lifting equipment

Claims

1. The first joint is located on the upper floor, The second joint is located on the lower floor, A riser connecting the first fitting and the second fitting, A piping structure including, An insertion opening is formed at the lower end of the first joint. The upper end of the riser pipe is formed with a receiving opening into which the insertion opening of the first joint can be inserted. The invention further comprises a joint member provided on the riser pipe, which slides along the longitudinal direction of the riser pipe, thereby enabling the connection and disconnection of the first joint and the second joint via the riser pipe. The aforementioned vertical pipe is It is formed by dividing it into a first riser connected to the first joint and a second riser connected to the second joint, The aforementioned joint member is, The first riser and the second riser can be connected, The aforementioned joint member is, With a gap provided between the first riser and the second riser, the first riser and the second riser can be connected. Piping structure.

2. The first joint is located on the upper floor, The second joint is located on the lower floor, A riser connecting the first fitting and the second fitting, A piping structure including, An insertion opening is formed at the lower end of the first joint. The upper end of the riser pipe is formed with a receiving opening into which the insertion opening of the first joint can be inserted. The invention further comprises a joint member provided on the riser pipe, which slides along the longitudinal direction of the riser pipe, thereby enabling the connection and disconnection of the first joint and the second joint via the riser pipe. The aforementioned vertical pipe is It is formed by dividing it into three or more parts. The aforementioned joint member is, Multiple sections of the divided risers are provided so that they can be connected to one another. The aforementioned joint member is, In a state where a gap is provided between two adjacent risers, the two adjacent risers can be connected. Piping structure.

3. The system further comprises a support member that supports the aforementioned joint member. The piping structure according to claim 1 or claim 2.

4. The aforementioned support member is A band-shaped member provided below the joint member in the riser pipe, which is detachable from the outer circumference of the riser pipe. The piping structure according to claim 3.

5. A method for replacing piping in a piping structure according to claim 1 or claim 2, The process involves sliding the joint member upward or downward to release the connection between two adjacent risers, The steps include removing the riser pipe connected to the first joint, The steps include removing the riser pipe connected to the second joint, The process of installing a new riser pipe and a joint member between the first joint and the second joint, including, How to replace piping.

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